You really need to have a look. Gearbox itself probably not an issue if you are careful with drill, but you need to identify position of reverse light switch, wiring and connector plus any other electrics in vicinity.
Jacking car up and using axle stands should allow access.
Didn't think about the wiring. I still can't get under the car due to my wrecked leg but I can direct someone else (swmbo!!)
